Strong acidic benzenesulfonic acid cation exchanger, exchange capacity 1.0 meq/g, base material polystyrene-divinylbenzene copolymer, pHstability 1–14
Spherical particles, size 45 μm and 85 μm (standard), pore size 65–75 Å, very large specific surface 800 m2/g, pore volume 1.4 cm3/g, RP capacity 300 mg/g (caffeine in water)
